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3A Chemistry

Chemical bonds

QuestionAnswer
Group IA lose (oxidation) 1e
Group IIA lose (oxidation) 2e
Group IIIA lose (oxidation) 3e
Group VA gain (reduction) 3e
Group VIA gain (reduction) 2e
Group VIIA gain (reduction) 1e
All elements except helium s2 in Group VIIIA has s2-p6
loss of electrons oxidation, positive charge
Gain of electrons reduction, negative charge
an atom that has gained or lost electrons Ion
cation positive charge
Anion negative charge
Positive ion name does not change
Negative ion name does change to ide
The ability of an atom to attract electrons Electronegativity
non metals on the right hand side tend to have High electronegativity
Metals on the left hand side tend to have Low electronegativity
Covalent 0.4 or less, and no charges
Polar covalent 0.5-1.9, and partially -, partially +
Ionic 2.0 or more , -, +
Higher number on electronegativity gets the negative charge
Lower number on electromagnetically gets the positive charge
two shared pairs of electrons -4 electrons Double bonds
Three shared pairs of electrons- 6 electrons Triple bond
Created by: edith1234
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